SOLUTION: u=3i+2j-k, v=i-3j+2k, find the unit vector in the direction of u-2v.

Question 1049494: u=3i+2j-k, v=i-3j+2k, find the unit vector in the direction of u-2v.
Answer by Edwin McCravy(20059) (Show Source): You can put this solution on YOUR website!

u=3i+2j-k, v=i-3j+2k

u-2v = (3i+2j-k)-2(i-3j+2k) =

3i+2j-k-2i+6j-4k =

i+8j-5k

to find a unit vector in the direction of that,
we divide by its magnitude, which is


Answer: (i+8j-5k)

Edwin

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